21905172

素因数分解:

$2^2\times 3^2\times {\mathrm{619}}^1\times {\mathrm{983}}^1$

素因数の和:1612

約数の個数: 36

約数和(自身を含む): 55517280

約数和(自身を除く): 33612108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 619, 983, 1238, 1857, 1966, 2476, 2949, 3714, 3932, 5571, 5898, 7428, 8847, 11142, 11796, 17694, 22284, 35388, 608477, 1216954, 1825431, 2433908, 3650862, 5476293, 7301724, 10952586, 21905172]

約数ペア:

[(1, 21905172), (2, 10952586), (3, 7301724), (4, 5476293), (6, 3650862), (9, 2433908), (12, 1825431), (18, 1216954), (36, 608477), (619, 35388), (983, 22284), (1238, 17694), (1857, 11796), (1966, 11142), (2476, 8847), (2949, 7428), (3714, 5898), (3932, 5571)]